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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Engine painting
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<blockquote data-quote="Little Honda" data-source="post: 24176" data-attributes="member: 667"><p><strong>Note b/4 Painting</strong></p><p></p><p></p><p>When Brian Dees did my Shadow engine 6 or 7 yrs ago, it came back with very poor surface here and there, which he explained to me like this: "On older crankcases, the oil has penetrated the metalurgic structure during thousands of heat-up and cool-down-processes. It may now happen, after surface cleaning and building up a professional cover,</p><p>starting with primer, filler and several final covers of gloss black, that, if you heat-harden</p><p>the final cover, some of these oil particles are evaporating under your new cover, so destroying its shine.</p><p>So, as a consequence from this, I wld recommend to heat up yr engine parts, b/4 starting</p><p>the colour job and wiping them clean with brake cleaner and kitchen paper. I would observe the hot surface through a lens, to detect any evaporation. Good method for</p><p>heating crankcases and covers are kitchen induction heaters. No risk to overheat.</p><p>Do not use Supermarket-Colour-Stuff! The right materials, matching to each other, are</p><p>most important! The correct handling of these materials require some experience, like choosing the right viscosity and operating pressure of the spraygun. Most demanding:</p><p>Cyl.-heads plus cylinders. Good luck!</p></blockquote><p></p>
[QUOTE="Little Honda, post: 24176, member: 667"] [b]Note b/4 Painting[/b] When Brian Dees did my Shadow engine 6 or 7 yrs ago, it came back with very poor surface here and there, which he explained to me like this: "On older crankcases, the oil has penetrated the metalurgic structure during thousands of heat-up and cool-down-processes. It may now happen, after surface cleaning and building up a professional cover, starting with primer, filler and several final covers of gloss black, that, if you heat-harden the final cover, some of these oil particles are evaporating under your new cover, so destroying its shine. So, as a consequence from this, I wld recommend to heat up yr engine parts, b/4 starting the colour job and wiping them clean with brake cleaner and kitchen paper. I would observe the hot surface through a lens, to detect any evaporation. Good method for heating crankcases and covers are kitchen induction heaters. No risk to overheat. Do not use Supermarket-Colour-Stuff! The right materials, matching to each other, are most important! The correct handling of these materials require some experience, like choosing the right viscosity and operating pressure of the spraygun. Most demanding: Cyl.-heads plus cylinders. Good luck! [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Engine painting
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